EP0619677A3 - System for scrambling a digital video signal. - Google Patents

System for scrambling a digital video signal. Download PDF

Info

Publication number
EP0619677A3
EP0619677A3 EP94105449A EP94105449A EP0619677A3 EP 0619677 A3 EP0619677 A3 EP 0619677A3 EP 94105449 A EP94105449 A EP 94105449A EP 94105449 A EP94105449 A EP 94105449A EP 0619677 A3 EP0619677 A3 EP 0619677A3
Authority
EP
European Patent Office
Prior art keywords
scrambling
video signal
digital video
digital
signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP94105449A
Other languages
German (de)
French (fr)
Other versions
EP0619677A2 (en
Inventor
Susumu Ibaraki
Noboru Katta
Seiji Nakamura
Hiroki Murakami
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP5083081A external-priority patent/JPH06296279A/en
Priority claimed from JP5083085A external-priority patent/JPH06296175A/en
Priority claimed from JP5088394A external-priority patent/JPH06303232A/en
Priority claimed from JP5150056A external-priority patent/JPH0723367A/en
Priority claimed from JP5254184A external-priority patent/JPH07111645A/en
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of EP0619677A2 publication Critical patent/EP0619677A2/en
Publication of EP0619677A3 publication Critical patent/EP0619677A3/en
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N9/804—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components
    • H04N9/8042—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components involving data reduction
    • H04N9/8047—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components involving data reduction using transform coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/2347—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving video stream encryption
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/4405—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video stream decryption
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/765—Interface circuits between an apparatus for recording and another apparatus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
    • H04N7/1675—Providing digital key or authorisation information for generation or regeneration of the scrambling sequence
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/24—Systems for the transmission of television signals using pulse code modulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Television Signal Processing For Recording (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
EP94105449A 1993-04-09 1994-04-08 System for scrambling a digital video signal. Ceased EP0619677A3 (en)

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
JP5083081A JPH06296279A (en) 1993-04-09 1993-04-09 Scrambling device and descrambling device
JP83081/93 1993-04-09
JP83085/93 1993-04-09
JP5083085A JPH06296175A (en) 1993-04-09 1993-04-09 Scrambler and descrambler
JP5088394A JPH06303232A (en) 1993-04-15 1993-04-15 Scrambling method and scrambling device
JP88394/93 1993-04-15
JP150056/93 1993-06-22
JP5150056A JPH0723367A (en) 1993-06-22 1993-06-22 Method for scrambling and its device
JP5254184A JPH07111645A (en) 1993-10-12 1993-10-12 Scramble device and descramble device
JP254184/93 1993-10-12

Publications (2)

Publication Number Publication Date
EP0619677A2 EP0619677A2 (en) 1994-10-12
EP0619677A3 true EP0619677A3 (en) 1995-03-08

Family

ID=27525020

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94105449A Ceased EP0619677A3 (en) 1993-04-09 1994-04-08 System for scrambling a digital video signal.

Country Status (3)

Country Link
US (1) US5546461A (en)
EP (1) EP0619677A3 (en)
KR (1) KR0184313B1 (en)

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JP3372611B2 (en) 1993-10-18 2003-02-04 キヤノン株式会社 Video transmission system, video processing device, and video processing method
JPH0856356A (en) * 1994-08-10 1996-02-27 Fujitsu Ltd Encoding device and decoding device
JP3729529B2 (en) * 1994-10-28 2005-12-21 ソニー株式会社 Digital signal transmission / reception system
KR0152788B1 (en) 1994-11-26 1998-10-15 이헌조 Copy protecting method and apparatus of digital image system
JP2842796B2 (en) * 1994-12-06 1999-01-06 富士通株式会社 Moving image encryption processing method and apparatus, and encrypted moving image decryption processing method and apparatus
KR0136458B1 (en) 1994-12-08 1998-05-15 구자홍 Copy protection apparatus of digital magnetic recording and reproducing system
US6487151B1 (en) * 1994-12-20 2002-11-26 Matsushita Electric Industrial Co. Ltd. Optical information recording and reproducing system with overwrite capability and recording medium for use therewith
FR2730116A1 (en) * 1995-01-31 1996-08-02 Thomson Broadband Systems SYSTEM FOR DEPARTURE OF A TELEVISION SIGNAL BROKER
JP3823333B2 (en) 1995-02-21 2006-09-20 株式会社日立製作所 Moving image change point detection method, moving image change point detection apparatus, moving image change point detection system
DE19521969C1 (en) * 1995-06-16 1997-02-27 Fraunhofer Ges Forschung Method for marking binary coded data sets
DE69630060T2 (en) * 1995-07-14 2004-07-08 Sony Corp. Process for the transmission of digital data and recording medium
JPH0944993A (en) * 1995-07-31 1997-02-14 Pioneer Electron Corp Information recording method and device therefor, function recording method and device therefor and information reproducing method and device therefor
KR0186210B1 (en) * 1995-11-10 1999-04-15 구자홍 A magnetic recording method
JPH1013828A (en) * 1996-06-21 1998-01-16 Sony Corp Picture encoding method, picture signal recording medium and picture decoder
JP3785711B2 (en) * 1996-12-24 2006-06-14 ソニー株式会社 Image reproducing apparatus and image reproducing method
KR100223634B1 (en) * 1997-01-15 1999-10-15 윤종용 Memory control method
KR100242448B1 (en) * 1997-06-28 2000-02-01 윤종용 Apparatus and method for controlling high speed reproducing for digital video disk
JP4456185B2 (en) * 1997-08-29 2010-04-28 富士通株式会社 Visible watermarked video recording medium with copy protection function and its creation / detection and recording / playback device
FR2771581B1 (en) * 1997-11-26 1999-12-17 Thomson Multimedia Sa SCALING METHOD AND SCALING METHOD OF DIGITAL VIDEO DATA AND DEVICES IMPLEMENTING THE METHODS
WO1999030280A1 (en) * 1997-12-05 1999-06-17 Dynamic Digital Depth Research Pty. Ltd. Improved image conversion and encoding techniques
US6343101B1 (en) * 1998-01-16 2002-01-29 Ess Technology, Inc. Frame-based sign inversion method and system for spectral shaping for pulse-coded-modulation modems
US7457415B2 (en) * 1998-08-20 2008-11-25 Akikaze Technologies, Llc Secure information distribution system utilizing information segment scrambling
WO2000052690A1 (en) * 1999-02-26 2000-09-08 Hitachi, Ltd. Digital signal recorder, reproducer and recording medium
US6505299B1 (en) * 1999-03-01 2003-01-07 Sharp Laboratories Of America, Inc. Digital image scrambling for image coding systems
US6290140B1 (en) * 1999-03-04 2001-09-18 Energyiq Systems, Inc. Energy management system and method
US6944296B1 (en) * 1999-03-24 2005-09-13 Intel Corporation Video bit scrambling
US6870930B1 (en) * 1999-05-28 2005-03-22 Silicon Image, Inc. Methods and systems for TMDS encryption
US6971022B1 (en) * 1999-06-15 2005-11-29 Matsushita Electric Industrial Co., Ltd. Cryptographic apparatus for performing cryptography on a specified area of content data
JP4519963B2 (en) 1999-06-21 2010-08-04 富士通株式会社 Biometric information encryption / decryption method and apparatus, and personal authentication system using biometric information
US6535687B1 (en) * 1999-07-23 2003-03-18 Sarnoff Corporation Method and system for deterring electronic video piracy through image rearrangement
KR100716769B1 (en) * 1999-11-16 2007-05-14 소니 가부시끼 가이샤 Recording medium, data recording method and apparatus, data reproducing method and apparatus, and copying control method
EP1267515A3 (en) * 2000-01-21 2004-04-07 Sony Computer Entertainment Inc. Method and apparatus for symmetric encryption/decryption of recorded data
JP3508680B2 (en) * 2000-02-24 2004-03-22 日本電気株式会社 Content illegal copy prevention method and system
US6937814B1 (en) 2000-04-14 2005-08-30 Realnetworks, Inc. System and method for play while recording processing
JP2002170333A (en) * 2000-11-28 2002-06-14 Pioneer Electronic Corp Method and device for recording information, and method and device for reproducing information
US6647149B2 (en) 2001-01-03 2003-11-11 Electronics For Imaging, Inc. Methods and apparatus for securely transmitting and processing digital image data
FR2840147B1 (en) * 2002-05-24 2004-08-27 France Telecom VIDEO INTERFERENCE AND SCRAMBLING METHODS, SYSTEM, DECODER, BROADCAST SERVER, DATA MEDIUM FOR CARRYING OUT SAID METHODS
US7240208B1 (en) * 2003-04-23 2007-07-03 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Encrypting digital camera with automatic encryption key deletion
FR2857813A1 (en) * 2003-07-16 2005-01-21 St Microelectronics Sa Timing mark inserting method for e.g. video and audio data flow, involves inserting timing mark in compressed data flow only after number of encrypted bits has reached/exceeded number of bits of encryption block
US7583299B2 (en) * 2004-01-14 2009-09-01 Casio Computer Co., Ltd. Moving image recording apparatus with a stream recording function of a moving image
JP2005217842A (en) * 2004-01-30 2005-08-11 Fujitsu Ltd Data compression method, data restoration method, and program thereof
US20060036852A1 (en) * 2004-08-16 2006-02-16 Kwok-Yan Leung Byte-based data-processing device and the processing method thereof
US8013888B2 (en) * 2005-02-14 2011-09-06 Broadcom Corporation Method and system for implementing film grain insertion
US7688977B2 (en) * 2006-03-31 2010-03-30 Brandenburgische Technische Universitaet Cottbus Method for encrypting video data
US7847923B2 (en) * 2006-09-29 2010-12-07 Millipore Corporation Differentiation of flow cytometry pulses and applications
WO2008060824A2 (en) * 2006-10-30 2008-05-22 Motorola, Inc. Method and system for secure communication in a communication network
KR101151107B1 (en) * 2008-08-12 2012-06-01 에스케이플래닛 주식회사 Moving picture encryption system and method
US8301697B2 (en) * 2009-06-16 2012-10-30 Microsoft Corporation Adaptive streaming of conference media and data
MX2016015022A (en) 2014-08-07 2018-03-12 Sonic Ip Inc Systems and methods for protecting elementary bitstreams incorporating independently encoded tiles.
CN109792523B (en) * 2016-08-30 2022-11-04 杜比实验室特许公司 Real-time shaping of single-layer backward compatible codecs

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0027572A1 (en) * 1979-10-18 1981-04-29 Crypto Aktiengesellschaft Method and apparatus for ciphered transmission of information
EP0454556A1 (en) * 1990-04-25 1991-10-30 Etablissement Public Télédiffusion de France Procedure and device for scrambling-descrambling of digital image data

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JPS6016082A (en) * 1983-07-07 1985-01-26 Sony Corp Transmission system of scramble television signal
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US4679078A (en) * 1983-11-15 1987-07-07 Luks Industrial Company Ltd. High security subscription television transmission system
US4742544A (en) * 1984-07-09 1988-05-03 Kupnicki Richard A Television transmission network with scrambling and descrambling
US4817146A (en) * 1984-10-17 1989-03-28 General Electric Company Cryptographic digital signal transceiver method and apparatus
US4815129A (en) * 1985-01-02 1989-03-21 General Instrument Corp. Video encryption system
JPS625510A (en) * 1985-07-01 1987-01-12 住友電気工業株式会社 Rubber cable
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Patent Citations (2)

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Publication number Priority date Publication date Assignee Title
EP0027572A1 (en) * 1979-10-18 1981-04-29 Crypto Aktiengesellschaft Method and apparatus for ciphered transmission of information
EP0454556A1 (en) * 1990-04-25 1991-10-30 Etablissement Public Télédiffusion de France Procedure and device for scrambling-descrambling of digital image data

Also Published As

Publication number Publication date
US5546461A (en) 1996-08-13
KR0184313B1 (en) 1999-05-01
KR940025348A (en) 1994-11-19
EP0619677A2 (en) 1994-10-12

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